Selena is driving to visit her grandmother who lives 325 miles away from selena home. she travels an average of 60 miles per hour. determine the independent and dependent quantities in each scenario. be sure to include the appropriate units of measure for each quantity

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.